Specification Test Results

• Solubility (Colour):
  Colourless
• Solubility (Turbidity)-0,5 g to 10 ml, H₂O:
  Clear
• Identity by IR:
  Conforms to Structure
• Specific Rotation C = 11, 6 M HCl, 20 °C/EP:
  12,0 – 12,8
• Specific Rotation C = 11, 6 M HCl, 25 °C/USP:
  12,6 – 14,0
• Chloride (Cl):
  ≤ 0,020%
• Ammonium:
  ≤ 0,02 %
• Sulfate:
  ≤ 0,020%
• Iron (Fe) :
  ≤ 10 ppm
• Heavy Metals:
  ≤ 10 ppm
• Arsenic (As):
  ≤ 1 ppm
• Loss on Drying:
  0,20%
• Residue on ignition (Ash):
  0,10%
• Ninhydrin-Positive Substances other amino acids:
  Conforms
• pH 2% in H₂O:
  7,0 – 8,5
• Assay (Dry Basis):
  98,5 – 101,0%